Snow-plow.



F. STENSON.

SNOW PLOW.

APPLICATION FILED APR. 20. 1 915.

Patented Sept. 12, 1916.

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F. STENSON.

SNOW PLOW.

APPLICATION FILED APR-20 19.15.

Patented Sept. 12, 1916.

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FRANK sTENsoiv, or NORMAN, NEBRASKA.

SNOW-PLOW.

Application filed April 20, 1915.

To all whom 2'25 may concern:

Be it known that I, FRANK STENsoN, a citizen of the United States, residing at Norman, in' the county of Kearney and State of Nebraska, have invented certainnew and useful Improvements in Snow- Plows, of which the following is a specification. 7 V

This invention relates to an improvement in snow plows, and has for its principal object to provide a construction consisting of few and simple parts so that it will be durable and that manufacture will be convenient and economical. While the snow plow is illustrated in a manner showing it to be drawn by draft animals for clearing the snow from roadways, it may of course be used for other purposes and may be moved by any suitable power.

The invention includes a plurality of snow plows disposed one above another upon a truck or vehicle and arranged one in advance of the other so that a comparatively less force will be required for operation.

It also includes certain means for adjustments whereby all of the plow members may be simultaneously elevated or lowered, also means for disposing and maintaining the plow members at vertical distances from each other, and means for changing the inclination of the plow members when passing over obstructions.

The invention also has reference to means for steering, and an arrangement of snowcutting blades found to be of advantage for breaking snow crusts, drifts, or snow which has become packed.

The invention consists of the novel construction, combination and arrangement of parts as described herein and claimed, and as illustrated in the drawing, it being understood that changes in form, size, proportion and minor details may be made within the scope of the claims, without departing from the spirit of the invention or sacrificing any of its advantages. V

In the drawing, Figure 1 is a broken away plan view of the snow plow, the drivers seat being omitted. Fig. :2. is a view in front elevation of the snow plow, on an enlarged scale. Fig. 8 shows a longitudinal section through the middle of the snow plow, the draft rigging being omitted. Fig. 4 is a view in side elevation of the snow plow. Fig. 5 is a transverse section on line Specification of Letters Patent.

Patented Sept. 12, 1916.

Serial No. 22,579.

55 of Fig. 4, looking to the front of the plow. Fig. 6 is a transverse section on line 66 of Fig. 4. Fig. 7 is a detail relating to the mounting forthe side-blades for the plows. I

Referring now to the drawing for a more particular description, numeral 1 indicates a wheel-axle having'a length less than the width of the plow-members. To provide a suitable support fora frame and for the reach or tongue, a sleeve 2 of adequate length is employed and is disposed midway between the ends of the axle, said sleeve being provided with brackets which are secured to the tongue 3.

Numeral 4 indicates a supporting bar, one of its ends being mounted on the hinge 5 which is secured upon the; tongue, rearwardly of the axle. This bar is preferably disposed above andprojects forwardly of the tongue and is providedwith a downwardly projecting part a; it is also provided,,adjacent to said part a with an elongated slot 6 traversedby the screw 7, said screw having a threaded connection with the collar 8 which is mounted upon the tongue near the rear end thereof.

The screw 7 is provided with a hand wheel 9, by means of which it may be retated for elevatingor lowering the bar 4, the screw also'being provided with a boss 10 for engaging said bar. Since the bar 4 has a considerable width, the hinge upon the tongue being of adequate proportion, they will sustain stresses directed longitudinally of the tongue to advantage.

At 11 is indicated a brace-rod or shaft. It is disposed parallel with the axle and is rotatably' mounted, midway between its ends, in the sleeve 6, said sleeve preferably being a part of a forwardly extending arm 0 of arm a.-

Numeral 12 indicates a plow member which, preferably, is substantially of V- shape in plan. It may be constructed of any suitable material, but sheet metal is preferred, and it may have any suitable curvature for engaging the snow through which it is to move, its lower edges preferably being rectilinear and normally disposed near the ground, as best shown in Figs. 3 and 4, its sides or wings being outwardly-divergent from its middle and inclined forwardly and downwardly to its convergent front end. It is provided, near the middle of each of its triangular sides or wings with apertured brackets 13 for receiving the shaft 11, and upon said brackets this plow-member, in part, is supported, and longitudinal movements thereof with reference to shaft 11 being prevented by the clips or collars 14c; and since the sleeve (5 has adequate length, the plow-member 12 will be adequately supported during operation to sustain stresses directed transversely when the vehicle or truck moves upon curves.

To provide an additional support for the plow-member 12, a second brace-rod or shaft 15 (Figs. 3. is provided, its ends being secured in the brackets 16 which are mounted upon the upper, rear ends of its wings. A second plow-member is indicated at 17 It is similar in form to plow-member 12, but has a greater width, and is disposed above and forwardly of said first named plow member, as plainly shown in the drawing. It is mounted upon shaft 11, brackets 18 being provided to receive the ends of said shaft, said brackets being secured upon the wings or sides of said plow members near their lower rectilinear edges adjacent to their rear ends.

To provide an additional support for the plow member 17 a third shaft or bracerod 19 is provided, its ends being mounted in brackets 20, said brackets being secured upon the sides or wings of this plow-member, near their upper, rear terminals.

The plow members are connected at their rear ends by means ofthe turnbuckle 21 and arm 22. Numerals 23 and 24: indicate reversely-threaded eye-bolts for the turnbuckle, the eye-bolt 23 being mounted upon shaft 19, near its middle, and eye-bolt 2% being mounted upon one end of arm 22, the opposite end of said arm being rigidly secured to shaft 15 by any suitable means, as by use of the pin 25. Arm 22 also operates as a counterbalance, so that the plows may be conveniently raised or lowered.

As thus described, the front part of the plow 17 may be elevated or lowered with reference to the plow 12, by rotating the turnbuckle, and means are provided so that an operator from the drivers seat 26 may cause the plow to swing upwardly and coincidently, when desired, by rotating the drum 27 by use of the crank 28, a chain or cable 29 being connected with the drum and engaging the pulleys 30 and 31 while connected with the upper end of arm 22, said pulleysbeing provided with suitable bearings carried by the tongue or reach 3.

Numeral 32 indicates a blade disposed at the front part of the plows, said blade consisting of an upright part (Z, and a part 0 which is inclined downwardly and rearwardly to the shoe h. The convergent, front ends of the plows are provided with slots 33, in which this blade may be disposed, and

by means of the slots the blade is supported in an upright position. The pivotal mounting for the lower end of the blade, in the front end of the lower plow, is indicated at 34, and a link 35 is pivotally connected with the upper end of the blade and with shaft 19. The shoe it, normally, is disposed on the ground and sustains a part of the weight of the plows.

At 36 are indicated upright blades which are secured upon the sides of each of the plows, near their rear ends. A steering wheel is indicated at 37, its shaft 38 having suitable bearings in the tongue, near the drivers seat, and by means of the crankarm or hand-lever 39, the shaft may be rotated for purposes of steering the truck or vehicle.

It will be understood that the device may be moved forwardly for clearing the snow from a roadway by animal power, doubletrees a0 (Fig. 1.) being shown for this purpose, and by use of the doubletree all it may be drawn rearwardly.

Among some of the advantages to be derived by use of the herein described snow plow, it may be stated that the blades mentioned tend to cut or break impacted snow or crusts which may have formed on a roadway. A vertical adjustment may be made for the plows by use of the screw 7 this being of advantage in some instances for decreasing the draft, or when working in heavy drifts. Also when clearing the snow where the drifts are deep, the space between the plows may be increased and the upper plow may be elevated by use of the turnbuckle; and when passing over bridges, culverts or obstructions it is often of advantage to elevate the front ends of the plows, temporarily, and this may be accomplished from the drivers seat by use of the crank and drum 27. Also when it is desired to move the snow plow to a location where work is to be done, the plows may be elevated by use of the screw 7 and drum 27, so that the plows will be disposed well above the vehicle.

While I have shown and described only two plow members I do not wish tobe understood as limiting myself in this respect. The advantage of the upper plow being disposed somewhat in advance of the lower plow is, that the upper part of a layer of snow or snow drift generally is in a less packed condition than the lower part, and offers a less resistance. The advantage in providing different widths for the plows is, that the lower plow will cause a clearance of snow of suitable width for the wheels of vehicles to pass, the upper plow moving the snow somewhat farther, transversely of the line of travel, to prevent it from falling back into the cleared trackway.

Having fully described the several parts of the snow plow, a further explanation relating to operation is not necessary.

What I claim and desire to secure by Letters Patent is,-

1. In combination with a vehicle provided with a supporting-bar extending longitudinally and forwardly thereof, a shaft disposed transversely of and mounted upon said bar, a plurality of connected plow members disposed one above the otherand mounted loosely on said shaft to permit a forward and rearward swinging movement of said plow members approximately along the axis of the vehicle, and means to control the swinging movements of the plow members.

In combination with a vehicle, a shaft disposedtransversely thereof, a plurality of connected plow members normally disposed parallel one above the other and mounted loosely on the shaft to permit a forward and rearward swinging movement of said plow members approximately along the axis of the vehicle, means to control the swinging movements of the plow members and means for adjusting the connection between the plow members to change their inclination with reference to each other.

3. In combination with a vehicle, an angular supporting-bar pivotally mounted thereon and extendingforwardly thereof, a shaft disposed transversely of and carried by the supporting-bar, a plow-member mounted loosely on said shaft to permit a forward and rearward swinging movement of said plow member from substantially its middle along the axis of the vehicle, a screw-member engaging the supporting-bar and mounted on the vehicle for elevating or lowering said supporting-bar, and a second plow-member disposed above and connected with the first named plow-member, said second plow-member being mounted loosely on said shaft to permit a forward and rearward swinging movement thereof from substantially its rear end along the axis of the vehicle.

a. In combination with a vehicle, a supporting-bar pivotally mounted thereon and projecting forwardly thereof, a shaft disposed transversely of and carried by the supporting-bar, a plow member mounted loosely on the shaft to permit a forward and rearward swinging movement of said plow member approximately along the axis of the vehicle, a screw-member engaging the supporting-bar and mounted on the vehicle for elevating or lowering said supporting-bar, a second plow member normally disposed parallel with and above the first named plow member and mounted loosely on said shaft to permit a forward and rearward swinging movement thereof from substantially its rear end along the axis of the vehicle, and devices, including a turnbuckle, connecting the rear ends of the plow members for changing the inclination of the second plow member with reference to the first named plow member.

5. A device of the class described, comprising, in combination with a movable vehicle, a shaft disposed transversely at the front and mounted on the vehicle, a plow member mounted midway between its ends on the shaft, a second plow member mounted at its rear end upon the shaft and disposed above the first named plow member, eye-bolts on the rear ends of the plow members, a turnbuckle engaging the eye-bolts, a shoe pivotally mounted on the bottom of the first named plow member and provided with an upright blade disposed at the front of the plow members, and a link pivotally con nected at one of its ends with said blade, its opposite end being pivotally connected with the second plow member.

In testimony whereof, I have affixed my signature in presence of two witnesses.

FRANK STENSON.

Witnesses:

Gno. P. KINGSLEY, ROY L. BARNES.

Copies of this patent may be obtained for flve cents each, by addressing the Commissioner of Patents, Washington, D. G." 

